class_docstr: MaxMind's GeoIP2
  =======================
  MaxMind's GeoIP2 products enable you to identify the location,
  organization, connection speed, and user type of your Internet
  visitors. The GeoIP2 databases are among the most popular and
  accurate IP geolocation databases available.
  
  API Reference
  -------------
  https://www.maxmind.com/en/geolocation_landing
code: def _build_headers(self, provider_key, **kwargs):
      return {
          "Referer": "https://www.maxmind.com/en/geoip_demo",
          "Host": "www.maxmind.com",
      }
  
imports: from __future__ import absolute_import
  import logging
  from geocoder.base import OneResult, MultipleResultsQuery
label_desc: Use image node_id 1 for calling the MaxmindQuery obj's underlying member method code with example usage: obj._build_headers(provider_key) and returns: dict